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REVISION C4 1 st Half!
An acid can be neutralised by adding a ______ or an ______ to it. An _______ is a soluble _______. An alkali can be neutralised by adding an ______ to it. (5) ACID ALKALI BASE ALKALI BASE
Sulfuric acid + magnesium oxide ______ + _______ (2)
Hydrochloric acid + Copper _____ _______ + ______ + carbon dioxide (3)
What ions are present in (i) all acids and (ii) all alkalis. Use this information to show why water is always formed. (3)
What are the 3 main chemical elements that plants need? (3)
Why do plants need nitrogen and what can be added to soil to increase the amount of these elements are present? (2)
Describe the process of eutrophication as 5 main stages? (5)
Which acid and base are needed to make the following fertilisers; ammonium sulfate and ammonium. (4)
Give a balanced symbol equation to represent the Haber process and state what conditions are used. (4)
Haber process - Why is 450 o C a compromise temperature? (3)
Haber process - Why is 200atm a compromise pressure? (3)
What happens to any unused reactants in the Haber process? (1)
1. Name the salt made when these react… Magnesium + sulfuric acid
Calculations What you need to know: Relative formula mass Empirical formula % composition by mass Use balanced equations to calculate masses of reactants.
Ammonia. Why study ammonia? Why is ammonia used in fertilisers? it provides nitrogen for plants to make plant proteins necessary for growth and repair.
1.Ammonia (alkaline) and nitric acid react together in a neutralisation reaction 2.The fertiliser ammonium nitrate is produced Making Fertilisers Making.
Making ammonia The Haber process
Chemistry C Atomic Structure
Reactions of Acids Acids can react with a variety of different chemicals. These are normally NEUTRALISATION REACTIONS We have looked at ACIDS + ALKALIS.
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Chemistry My family and home 03/07/2015. Acids and bases (alkalis) Used by the body, used in other processes: such as food, farming and chemical industries.
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The structure of the atom ParticleRelative MassRelative Charge Proton11 Neutron10 Electron0 MASS NUMBER = number of protons + number of neutrons SYMBOL.
Subatomic particle MassCharge +1 0 Match the pictures above with the words below and define the words Element Compound Mixture Name the 3 parts of the.
Bases S2 Chemistry Classifying chemicals and chemical reactions.
All chemical reactions have two parts: Reactants and Products.
Synthesis and Analysis. Learn how to prepare a sample of an insoluble salt ( page 35 ) Learn to write a word equation for a precipitation reaction to.
REVISION C4 1 st Half! (H) An acid can be neutralised by adding a ______ or an ______ to it. An _______ is a soluble _______. An alkali can be neutralised.
Acids and bases. acids Always contain hydrogen. Always contain hydrogen. Strong or weak acids. Strong or weak acids. Common properties Sour Sour Gritty.
Word Equations Form 3G St. Mary´s College.
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